Dr. Bruce Perry, the world's leading expert on childhood trauma is in town to talk about how a child’s brain is affected by trauma or chronic adversity – such as living in poverty, or experiencing or witnessing violence in the home. I’m Mike McIntyre. On The Sound of Ideas, we’ll have Dr. Perry in studio along with a local group using his innovative therapies, the Positive Education Program. Later, how joining a solar coop can make going green cheaper.